<template>
  <div>
    <!-- 面包屑导航 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>数据统计</el-breadcrumb-item>
      <el-breadcrumb-item>数据报表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图区域 -->
    <el-card>
      <!-- 2.为 ECharts 准备一个具备大小（宽高）的 DOM -->
      <div id="main" style="width: 700px; height: 400px"></div>
    </el-card>
  </div>
</template>

<script>
// 1.导入echarts
import * as echarts from 'echarts'
import _ from 'lodash'
export default {
  data() {
    return {
        //需要合并的数据
        options: {
        title: {
          text: '用户来源'
        },
        tooltip: {
          trigger: 'axis',
          axisPointer: {
            type: 'cross',
            label: {
              backgroundColor: '#E9EEF3'
            }
          }
        },
        grid: {
          left: '3%',
          right: '4%',
          bottom: '3%',
          containLabel: true
        },
        xAxis: [
          {
            boundaryGap: false
          }
        ],
        yAxis: [
          {
            type: 'value'
          }
        ]
      }
    }
  },
  created() {},
  //此时页面上的元素已经被渲染完毕了
 async mounted() {
     const {data:res}=await this.$http.get('reports/type/1');
     if (res.meta.status!==200) {
         return this.$message.error('获取数据失败');
     }
    //  console.log(res.data);
    // 3.基于准备好的dom，初始化echarts实例
    var myChart = echarts.init(document.getElementById('main'));
    //4.指定图表的配置项和数据
    var option = {
      title: {
        text: 'ECharts 入门示例',
      },
      tooltip: {},
      legend: {
        data: ['销量'],
      },
      xAxis: {
        data: ['衬衫', '羊毛衫', '雪纺衫', '裤子', '高跟鞋', '袜子'],
      },
      yAxis: {},
      series: [
        {
          name: '销量',
          type: 'bar',
          data: [5, 20, 36, 10, 10, 20],
        },
      ],
    }
    //合并数据
    const result=_.merge(res.data,this.options);
    //5.使用刚指定的配置项和数据显示图表。
    myChart.setOption(result)
  },
}
</script>

<style scoped>
</style>